I have already played summer memories / winter memories a while ago and now I am taking it up again but I would like the experience to be a little different so I was wondering if it is possible to change only the name of the heroines, I do not care much that the text sometimes does not make sense, I just want to know if it is possible to change the name of aunt miyuki to Mom and those of the girls to rioneechan and yuineechan, with what tool is it made and what steps should it follow?